There are 3 achievements in this game that require you to play the game for a total of 20 days consecutively
Unfortunately you cannot go offline and change your date manually to unlock or change your time zone whilst online to earn a day early. You must open the game every day for 20 real days.
The achievement requires you to only load up the Roblox game and press
at the title screen everyday.
Now the issue the majority seem to have been having is what a 'day' counts as, my day 3, day 10 and day 20 achievements have both popped just
after midnight GMT time so I think its highly possible that the game is running on the GMT timezone so please account for this when you play, this should help you see the time in London right now to check its a new day
.Make sure that you are opening the game a-fresh everyday and not merely resuming, to be sure of this always close the game by press to go home, then to open the menu and choose 'Quit' from there. It doesn't hurt to also open the game more than once a day.
You will also unlock the other achievements on their respective days